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Finding the Fourth Proportional to 124,891.20, 187,336.80 and 116,596.80

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Solution

The fourth proportional to 124,891.20, 187,336.80 and 116,596.80 is: 174,895.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,891.20 : 187,336.80 = 116,596.80 : x
  2. Step 2: Convert to fraction form
    124,891.20/187,336.80 = 116,596.80/x
  3. Step 3: Cross multiply
    124,891.20x = 187,336.80 × 116,596.80
  4. Step 4: Simplify right side
    124,891.20x = 21,842,871,402.24
  5. Step 5: Solve for x
    x = 21,842,871,402.24/124,891.20
  6. Step 6: Final answer
    x = 174,895.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.